During the 1200s, Fibonacci brought numerals to Europe. Because he was Italian, Italy was the first region to start using them. These numbers made it easier to use a money-based system of trade and to keep business records.

Hindu-Arabic numerals.

Explanation:

Fibonacci was an Italian who travelled around North Africa as a child with his father, during these travels he learned about Arabic mathematics. When he went back to Italy, he helped to spread this knowledge all through Europe. With Italy being the first.

In 1202, he wrote a book which was greatly influential. The book was called Liber Abaci translated as Book of Calculation, in this book he promoted the use of the Hindu-Arabic numeral system, he made mentions of the benefits of the Hindu-Arabic numerals for merchants and mathematicians over the system of Roman numerals that was in use in Europe.

the answer wold be b) travel among nations should be regulated by an international organization

propriety is the answer. hope this !

explanation: